Ask the experts

[smmokan]

FWIW, I rode with a guide in Peru over the winter who snapped the rear brake caliper right inside the back bolt so it was only holding on with the front. He rode it all day that way on some pretty gnarly trails with zero issues.

[toast2266]

FWIW, I rode with a guide in Peru over the winter who snapped the rear brake caliper right inside the back bolt so it was only holding on with the front. He rode it all day that way on some pretty gnarly trails with zero issues.

So what you're saying is that I should only run one brake mount bolt to save weight?

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[Tailwind]

Are counterfeit XTR pedals a thing?

I bought a pair off eBay, didn’t realize they were shipping from China. They arrived and looked fine but a couple hundred miles in the axle has massive play (4-5 mm left right) and when I went to rebuild I noticed that the axel uses a 5/8 inch wrench… and I’m pretty used to Shimano uses mm. I don’t have another XTR pedal around but XT’s are a 17mm cone wrench.

[rideit]

Sadly, this is definitely a thing. Seems like it would be MASSIVELY expensive to set up a factory/assembly line for such a niche product.

https://www.mtbr.com/search/1707230/...ls&o=relevance

[toast2266]

Sadly, this is definitely a thing. Seems like it would be MASSIVELY expensive to set up a factory/assembly line for such a niche product.

I would kinda assume it's something where they're using the old tooling from real shimano pedals. Like the tooling and castings got used to make the real thing for a while and are now worn out and not to spec, so they got "discarded" into the hands of some other Chinese factory that's still using them to make shitty knock offs that more or less look the same.

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[jdadour]

Sadly, this is definitely a thing. Seems like it would be MASSIVELY expensive to set up a factory/assembly line for such a niche product.

https://www.mtbr.com/search/1707230/...ls&o=relevance

Thanks for mentioning this! I recently bought some PD-8100 pedals on ebay from the seller below, and notice one the pedals does not spin very well and the other spins pretty slowly. After looking at the MTBR thread, Im almost certain mine are counterfeit because they have all the same differences. I dont know if the seller maybe got screwed from their supplier and didnt know, or if its there fault.

https://www.mtbr.com/threads/fake-deore-xt.1210812/

https://www.ebay.com/itm/386098539604?var=653647971045

[Tailwind]

Well that kinda confirms things. I did check and the sizes of bolts actually do match current XTR so I like the stolen castings theory.

When I bought them I didn’t realize they were coming from China and I was suspicious when they arrived. They passed the visual test but last ride one pedal body unthreaded off the axle (got like 90% of the way off) and they seem to be a little softer. The cleats are slowly denting the pedal body.

[Huskier]

I'm slowly progressing in my build of a torque-sensing mid-drive Ebike conversion of a Salsa Journeyman from the late 20teens. My eyes for battery and range were unfortunately bigger than my front triangle accessory bosses can handle and I'm in the awkward position of having to install a third boss higher up the down tube to accommodate the battery mount. I'm looking at rivnuts, couple questions:
1) Size: 5mm/0.8. Other parameters I need to account for? Trying to get as close to stock hardware as possible
2) Material: My choices are stainless vs Zinc-plated carbon steel. I've never set Rivnuts in aluminum before, any weird metallurgical/chemical considerations I need to account for?

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[Beaver]

I have a belt drive SS on an HG hub on a norco watchamacallit. I have an Alifine 8 sp with no cog/c clips.... What do I need to mount a belt cog to my Alfine?

[El Chupacabra]

I'm slowly progressing in my build of a torque-sensing mid-drive Ebike conversion of a Salsa Journeyman from the late 20teens. My eyes for battery and range were unfortunately bigger than my front triangle accessory bosses can handle and I'm in the awkward position of having to install a third boss higher up the down tube to accommodate the battery mount. I'm looking at rivnuts, couple questions:
1) Size: 5mm/0.8. Other parameters I need to account for? Trying to get as close to stock hardware as possible
2) Material: My choices are stainless vs Zinc-plated carbon steel. I've never set Rivnuts in aluminum before, any weird metallurgical/chemical considerations I need to account for?

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Could you use a water bottle mount extension bracket instead? Not sure if that would be the stronger choice vs drilling and adding a riv nut though.

https://www.amazon.com/Mounting-Alum...3&gad_source=1

[Huskier]

Could you use a water bottle mount extension bracket instead? Not sure if that would be the stronger choice vs drilling and adding a riv nut though.

https://www.amazon.com/Mounting-Alum...3&gad_source=1

Did not know that existed, will give 'er a try, thanks!

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[Dromond]

Are counterfeit XTR pedals a thing?

I bought a pair off eBay, didn’t realize they were shipping from China. They arrived and looked fine but a couple hundred miles in the axle has massive play (4-5 mm left right) and when I went to rebuild I noticed that the axel uses a 5/8 inch wrench… and I’m pretty used to Shimano uses mm. I don’t have another XTR pedal around but XT’s are a 17mm cone wrench.

While my experience wasn’t with pedals, I received counterfeit Shimano cleats from an Amazon seller. The packaging was very convincing but the cleats were made of painted, super soft metal that you absolutely could not safely use.

[jm2e]

What 11 speed chain should I be getting?
I feel like some of you fellas are passionate about this.
FWIW, I won't be using any Queso.

[Dee Hubbs]

What 11 speed chain should I be getting?
I feel like some of you fellas are passionate about this.
FWIW, I won't be using any Queso.

With 11s you still have the choice to run what ever brand you want.
You can’t go wrong with any of the upper level chains. For an extra $17-20 for the top of the line chain, it’s worth it. If cost is the driver find the best deal on a mid range solid pin chain.
I would not cheap out and buy a low end chain.
I think the quieter chain noise alone on the chamfered plated chains is worth the spend.

Top of the line hallow pins or plate cut outs, chamfered plates are:
KMC X11 SL or EL
DuraAce/XTR 901
SRAM Red 22 or 1170

Solid pins, still chamfered plates:
KMC x11
Ultegra/XT 701

Cheaper, heavier but better value:
Shimano 601
SRAM 1130
Don’t buy anything below this level.

[jm2e]

Brilliant. Cheers.

[Powder Ho]

The clutch acthuator on my 12 speed XT will not stay in the on position when I ride. The clutch works when it's on.
The shifting is flawless just a little noisy in the rock gardens.
It's 4 years old so I just ordered a new clutch package.
Anybody experience this or have any ideas?
Thanks.

[jm2e]

Gorilla Tape vs Aquaseal.


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[sb]

So looking at longer travel 29” bikes, how does Marcoozzy forks and shocks stack up to Rock Shocks?

[sb]

Ibis ripmo af has the Marzzy fork/shocks where as Giant Trance has RS.

[Roxtar]

Gorilla Tape vs Aquaseal.


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NOOOOOOOOOOOOOOOOOOOOOOOOOOOOO!
Sorry, thoughts of gorilla tape residue brings on PTSD from days of cleaning/re-glueing tubulars.

I know nothing about Aquaseal.

[bamboocoreONLY]

The clutch acthuator on my 12 speed XT will not stay in the on position when I ride. The clutch works when it's on.
The shifting is flawless just a little noisy in the rock gardens.
It's 4 years old so I just ordered a new clutch package.
Anybody experience this or have any ideas?
Thanks.

Don't always need to order a new one, pretty easy to service your clutch using an online vid. They do get dirty over time and the actuator won't always work well when gunked up inside. I've done it to many of mine and always works.

[Powder Ho]

Don't always need to order a new one, pretty easy to service your clutch using an online vid. They do get dirty over time and the actuator won't always work well when gunked up inside. I've done it to many of mine and always works.

I had it serviced this past winter, but I'll try that. Thanks.
Gorilla tape or Aquaseal not an option.

[Dee Hubbs]

Gorilla Tape vs Aquaseal.

Customer at bike shop "Why was the tubeless refresh and rim tape service job sooo expensive?"
Me: "That's a good question to ask the shop that installed Gorilla Tape on your nice carbon rims"

[Beaver]

Does anyone make a sram freehub mounted shimano compatible 12 speed cassette?

The bike shop I got my wife's Orbea Wild at (Kelowna eride) fuct up and put the wrong wheel on her bike. They were probably building 2 similar biked and swapped rear wheels. They want me to leave thd bike with them to sed what they neec to fix it but well, fuck them. My dealings with them have been less than good, I'll do it myself. If I have to swap my freehub body as well I'll do that too but if someone makes a cassette that works I'll slap it on and roll with it.

[toast2266]

Does anyone make a sram freehub mounted shimano compatible 12 speed cassette?

The bike shop I got my wife's Orbea Wild at (Kelowna eride) fuct up and put the wrong wheel on her bike. They were probably building 2 similar biked and swapped rear wheels. They want me to leave thd bike with them to sed what they neec to fix it but well, fuck them. My dealings with them have been less than good, I'll do it myself. If I have to swap my freehub body as well I'll do that too but if someone makes a cassette that works I'll slap it on and roll with it.

What do you mean by "shimano compatible"?

A sram cassette will work with a shimano derailleur. A sram cassette won't work so well with a shimano chain.

Do you already have a shimano cassette and chain? A microspline freehub body is almost certainly going to be cheaper than an XD cassette.